Valiant Defender Shield

Flavor:
Nothing says "Defense" quite like turning yourself into a giant, glowing beacon for your enemies.

History:
Alton Swordbreak ''discovered this Shield in an ancient Library after the terrifying discovery of his Dark Iron Ring. The shield was locked inside a wall-ornament slab, to be used as a coat-of-arms.''

''The edge of the shield was engraved with enchanted words, reading "Defending Valiantly Against _____". Alton quickly discovered speaking certain words changed what the Inscription defended against, such as "Defending Valiantly Against Nothing" and "Defending Valiantly Against Dwarves", glowing on its own accord whenever the concept it defends against was nearby.''

''For as long as the Shield was inside the Lock, the Inscription of the Shield could be changed at will. Once the Shield was taken out of its lock, whatever was last engraved on it would become its permanent enchantment.''

To bypass this, Alton decided to simply not remove the shield at all, carrying the whole slab around with him, allowing him to change the wording of the shield infinitely. (A mechanic he used quite heavily, to mixed results.)

Mechanics:
For as long as the Shield is inside the Wall-Ornament it is locked into, it is possible to change its Inscription to defend the wielder against any named object or concept.

Once the Shield is removed from its Lock, the last word that was engraved into it becomes permanent.

Whether or not the shield is out of its lock or not, it will glow whenever the item engraved on it is close-by.

It only glows slightly when enemies are somewhere in the vicinity, glows brightly when they are close, but starts flashing wildly when they are almost upon you.